Quantum Research Seminar: Hans Christiansen & Elias Theil

Speaker: Hans Christiansen, Condensed Matter Theory

Title: Cat Qubits - Emergent Robustness from Dissipation

Abstract: The dissipative cat qubit, a bosonic code stabilized by engineered dissipation, is a promising building block for a universal quantum computer and can be realized in superconducting circuits. Unlike conventional qubits, its dissipative nature turns loss into a stabilizing mechanism, yielding intrinsic protection against several error channels.

 

Speaker: Elias Theil, QMATH

Title: Quantum Purity Amplification

Abstract: When given multiple noisy copies of a pure quantum state, we can try to extract the original pure state again. This process can be seen as a quantum analogue of the classical majority vote algorithm. I will present the currently best known protocols for this task, and I will examine what role coherence plays for the protocol by comparing to the measure-and-prepare case.

  

The Quantum Research Seminar (QRS) is a student-led monthly seminar series featuring talks from early career researchers in quantum science at KU. It takes place every second Friday of the month from 12-13 in HCØ. Free lunch is provided.

 

The goal of the QRS is to bring together the quantum community at KU and provide a space for PhDs and PostDocs to practice presenting their research to a wider audience within quantum sciences.